STMicroelectronics STM32F303VET6TR

Overview

STM32F303VET6TR from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, 72 MHz max clock, 512 KB Flash, 80 KB SRAM (64 KB + 16 KB CCM), and integrated analog peripherals including four operational amplifiers, seven comparators, two 12-bit DACs, and four ADCs (up to 40 channels, 0.20 µs conversion). It operates from 2.0–3.6 V and targets motor control, digital power conversion, and industrial sensing systems requiring real-time signal processing and mixed-signal integration.

For engineers reviewing the STM32F303VET6TR datasheet, STM32F303VET6TR pinout, STM32F303VET6TR application, or STM32F303VET6TR equivalent, key selection criteria include its dual 12-bit DACs with 2.4–3.6 V analog supply, rail-to-rail comparators, programmable gain amplifier (PGA) capability in op-amps, and CAN 2.0B interface - all validated for closed-loop analog-intensive embedded designs.

Technical Context

The STM32F303VET6TR implements an ARM Cortex-M4 core with hardware FPU, single-cycle MAC, and DSP extensions, enabling deterministic execution of motor control algorithms and digital filter routines. Its memory subsystem includes 512 KB Flash with error correction, 64 KB SRAM with parity on first 32 KB, and 16 KB CCM SRAM accessible via instruction/data bus - optimized for low-latency interrupt handling and real-time data buffering.

Analog subsystem integration is tightly coupled: four op-amps support PGA mode with all terminals exposed, seven comparators feature ultra-fast propagation (<100 ns), and four ADCs share flexible sampling and resolution (6/8/10/12-bit) across up to 40 channels - all referenced to a dedicated 2.0–3.6 V analog supply (VDDA) independent from digital VDD.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mixed-signal microcontroller applications.

Compared with STM32F303RET6, the STM32F303VET6TR offers 2× Flash, 38 more I/Os, and FSMC for external memory - critical for scalable HMI or data-acquisition systems. Versus STM32F407VGT6, it trades CPU speed for on-chip analog integration, reducing bill-of-materials and board space in sensor- and actuator-focused applications.

Availability

STM32F303VET6TR is available at Aetrix Electronics and suitable for motor control systems, digital power converters, industrial sensor hubs, and human-machine interfaces requiring stable component supply and long-term industrial lifecycle support.

Supply support for STM32F303VET6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components since 1987.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - combining high-precision analog peripherals with real-time Cortex-M4 performance for motor control, digital power, and industrial automation.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F303VET6TR achieves 72 MHz maximum CPU frequency using its internal PLL, which multiplies the 8 MHz HSI or external crystal input. The PLL supports fractional division and is configured via RCC registers; stable operation requires proper decoupling and adherence to VDD/VDDA voltage and temperature specifications per datasheet Section 6.3.

Does this MCU support hardware CRC calculation and why does it matter?

Yes - it includes a dedicated CRC calculation unit compliant with IEEE-802.3 (32-bit polynomial). This enables real-time checksum computation for firmware integrity verification, secure OTA updates, and reliable communication frame validation without burdening the CPU - critical for safety-critical industrial firmware deployments.

How many analog-to-digital converters does it have and what are their key capabilities?

It integrates four independent ADCs (ADC1–ADC4), each supporting up to 16 channels, selectable resolution (6/8/10/12-bit), and conversion time as low as 0.20 µs. They share a common clock and can be triggered synchronously - enabling simultaneous sampling of multiple analog signals such as phase currents in motor drives or multi-sensor arrays.

What debug interfaces are supported and are they production-safe?

It supports Serial Wire Debug (SWD) and JTAG via dedicated pins (SWCLK, SWDIO, JTCK, JTDI, etc.), with full ETM trace capability. These interfaces remain active in all debug modes and do not interfere with normal operation when unused - making them safe for production programming and field diagnostics without requiring additional test points or bootloaders.